P. Croce, D. Pocar
Jun 15, 1976
Citations
0
Influential Citations
11
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
3-Cyano-, 3-formyl-, and 3-methoxycarbonyl-allylidenetriphenylphosphorane react with nitrile imides and nitrile oxides yielding the corresponding substituted pyrazoles and isoxazoles, through elimination of a methyltriphenylphosphonium salt. The differences in reactivity between the foregoing phosphoranes and simple carbonyl-stabilised phosphoranes are discussed.